### Encyclopedia article about Topology

The following article about Topology, written by Donald
M. Davis in 1993, appeared in Encyclopedia of Mathematics Education,
Grinstein & Lipsey, ed., Routledge-Falmer Publ., 2001.
- page 1
- page 2
- page 3 (Note. The article says that the
Poincare is unresolved. It was proved by Perelman in 2003.)